Add option to enable ACL debug build to meson

There was no option to enable ACL_DEBUG rather than
specifying this symbol directly in the code, which is awkward

controlplane/acl.cpp

@@ -10,8 +10,6 @@
 #include <unordered_set>
 #include <vector>
 
-//#define ACL_DEBUG
-
 #ifdef ACL_DEBUG
 #define ACL_DEBUGLEVEL (1)
 #else

controlplane/acl/bitset.h

@@ -4,6 +4,10 @@
 #include <tuple>
 #include <vector>
 
+#ifdef ACL_DEBUG
+#include <string>
+#endif
+
 namespace acl
 {
 

meson.build

@@ -28,6 +28,9 @@ compiler_args += [
     '-DYANET_VERSION_CUSTOM=' + get_option('version_custom'),
 ]
 
+if get_option('enable_acl_debug')
+    compiler_args += '-DACL_DEBUG'
+endif
 
 # Add all global arguments at once
 add_global_arguments(compiler_args, language: 'cpp')

meson_options.txt

@@ -41,3 +41,8 @@ option('version_custom',
        value: 'develop',
        description: 'Set the custom string version.',
        yield: true)
+
+option('enable_acl_debug',
+       type: 'boolean',
+       value: false,
+       description: 'Enable ACL debug flags.')